[Marsymars]

This is relatively easy to handle for e.g. family sharing for Apple - everyone uses the same billing method, so it's naturally limited to people where you feel comfortable covering the cost of all their Apple digital purchases.

Netflix has no such "real-world" limit to apply that naturally covers students and other dependants, so they seem stuck with various contrived options.

I feel like # of simultaneous streams really ought to have been the natural limiter. If you're allowed two streams, it doesn't make a difference in the real world whether the two streams are to the same physical house or not.